4542 /**

  4543  * Function to purge all caches used in Enano. Useful for upgrades, maintenance, backing the site up, etc.

  4544  */

  4545 

  4546 function purge_all_caches()

  4547 {

  4548   if ( $dh = opendir(ENANO_ROOT . '/cache') )

  4549   {

  4550     $data_files = array(

  4551         'aes_decrypt.php',

  4552         'cache_anon_sidebar.php',

  4553         'cache_page_meta.php',

  4554         'cache_plugins.php',

  4555         'cache_ranks.php'

  4556       );

  4557     while ( $file = @readdir($dh) )

  4558     {

  4559       $fullpath = ENANO_ROOT . "/cache/$file";

  4560       // we don't want to mess with directories

  4561       if ( !is_file($fullpath) )

  4562         continue;

  4563       

  4564       // data files

  4565       if ( in_array($file, $data_files) )

  4566         unlink($fullpath);

  4567       // template files

  4568       else if ( preg_match('/\.(?:tpl|css)\.php$/', $file) )

  4569         unlink($fullpath);

  4570       // compressed javascript

  4571       else if ( preg_match('/^jsres_(?:[A-z0-9_-]+)\.js\.json$/', $file) )

  4572         unlink($fullpath);

  4573       // tinymce stuff

  4574       else if ( preg_match('/^tiny_mce_(?:[a-f0-9]+)\.gz$/', $file) )

  4575         unlink($fullpath);

  4576       // language files

  4577       else if ( preg_match('/^lang_json_(?:[a-f0-9]+?)\.php$/', $file) || preg_match('/^lang_(?:[0-9]+?)\.php$/', $file) )

  4578         unlink($fullpath);

  4579     }

  4580     return true;

  4581   }

  4582   return false;

  4583 }

  4584